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Article #42486Re: unresolved symbols
From: Rusty, Paul , Russell
Date: Wed, 06 Dec 1995 00:00
Date: Wed, 06 Dec 1995 00:00
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1289 bytes
In message <rbuchmanDJ5I3w.463@netcom.com> you write: > I am using DEC Unix OSF/1 3.2b and gcc 2.7.2 to program a simple math > problem. i include <math.h> in the program but when i compile it i > get an error when it tries to link the binary. the problme is that it > cannot resolve sin, cos, pow, sqrt. am i missing something?? the Hi Richard, Try adding "-lm" to your link line. This tells it to link with the maths library, which is not linked in by default under Unix. eg. to compile up "problem.c" which uses a function in <math.h>, foobar 100% gcc -o problem problem.c -lm Hope that helps, Rusty. -- Rusty.Russell@adelaide.maptek.com.au "Engineer? So you drive trains?" Lies, damned lies, and out-of-date documentation. #include <stddisclm.h>
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 11318c,b66ab31328ff09,start X-Google-Attributes: gid11318c,public From: Rusty.Russell@adelaide.maptek.com.au (Rusty, Paul , Russell) Subject: Re: unresolved symbols Date: 1995/12/06 Message-ID: <199512060918.TAA18662@gauss.adelaide.maptek.com.au> X-Deja-AN: 121063389 distribution: gnu sender: daemon@cis.ohio-state.edu references: <rbuchmanDJ5I3w.463@netcom.com> organization: GNUs Not Usenet newsgroups: gnu.gcc.help